Method intercept

packages/common/http/src/jsonp.ts:333–337

* Identifies and handles a given JSONP request. * @param initialRequest The outgoing request object to handle. * @param next The next interceptor in the chain, or the backend * if no interceptors remain in the chain. * @returns An observable of the event stream.

(initialRequest: HttpRequest<any>, next: HttpHandler)

   * @returns An observable of the event stream.
   */
  intercept(initialRequest: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    return runInInjectionContext(this.injector, () =>
      jsonpInterceptorFn(initialRequest, (downstreamRequest) => next.handle(downstreamRequest)),
    );
  }
}